Sludge process reduction

1. The best way to reduce the amount of sludge is to reduce the sewage discharge from upstream devices. If the sewage treatment volume is greatly reduced, the activated sludge output will definitely be less. 2. Use efficient biochemical processes to replace conventional activated sludge processes, such as BAF, MBR, etc. 3. Optimize the operating conditions of the existing biochemical treatment process and effectively reduce the volume of the aeration tank. For example, a company has decommissioned an aeration tank by changing the aeration method, adding fillers, etc. 4. Regarding what the poster said about extending the sludge residence time, I don’t quite understand whether this will cause the sludge to disintegrate and increase the concentration of pollutants in the effluent. Please discuss! ! !

It seems unlikely to reduce upstream sludge, right? Sometimes the entire sewage treatment process is the downstream treatment device. The downstream treatment device requires the upstream device to meet certain requirements, which is a bit difficult, otherwise there will be no need for the downstream device.

1. The continuous increase in sludge production has put heavy pressure on its subsequent treatment and disposal, and improper treatment will also cause secondary pollution. Therefore, source reduction is the primary principle of sludge treatment. The application of new sludge reduction technology can significantly reduce the amount of sludge produced while ensuring the sewage treatment effect, thereby achieving sustainable development of sewage treatment. 2. The sludge reduction process mainly includes two-stage aerobic bioreactor, adding decoupling agent, aerobic-sedimentation-anaerobic process, return sludge lysis process, etc. 3. The biggest advantage of adding decoupling agent to reduce the remaining sludge is that there is no need to make major improvements to the existing sewage treatment process, and only need to add a chemical dosing device. This post was last edited by Welcome on 2009-4-10 08:18 ]

1. Sludge reduction can be controlled by various methods, such as extending the sludge age time and using delayed aeration. The sludge generated will be reduced, such as the oxidation ditch process, but this will increase infrastructure costs. 2. After the sludge is generated, the sludge must be treated. Generally, the sludge in sewage plants must undergo anaerobic digestion and reduction to minimize the organic matter in the sludge. In fact, the sludge output will also be reduced accordingly. * * Zoom out. 3. The sludge can also be treated with special microorganisms, and specially cultivated microorganisms can be used to degrade the sludge and reduce the amount of sludge.

New sludge reduction process - adding decoupling agent. The catabolism and anabolism of microorganisms under normal conditions are coupled together through the conversion between adenosine triphosphate (ATP) and adenosine diphosphate (ADP), that is, if a certain substrate is decomposed, a certain proportion of the organism will be synthesized. But in special circumstances, when the substrate is oxidized, ATP is not synthesized in large amounts or is quickly released by other pathways after synthesis. In this way, while the bacteria decompose the substrate normally, their own synthesis speed slows down. Adding uncoupling agents is one of the methods to achieve this metabolic decoupling. Decoupling agents are usually fat-soluble small molecule substances and generally contain acidic groups. Their mechanism of action is to reduce the resistance of the cell membrane to H+ by combining with H+, carrying H+ across the cell membrane, and reducing the proton concentration gradient on both sides of the membrane. The reduced proton concentration gradient is not enough to drive ATP synthase to synthesize ATP, thus reducing the amount synthesized by oxidative phosphorylation. The energy generated during the oxidation process is eventually released in the form of heat, thereby reducing the amount of remaining sludge produced.